22143893257 has 2 divisors, whose sum is σ = 22143893258. Its totient is φ = 22143893256.

The previous prime is 22143893251. The next prime is 22143893327. The reversal of 22143893257 is 75239834122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13703980096 + 8439913161 = 117064^2 + 91869^2 .

It is a cyclic number.

It is not a de Polignac number, because 22143893257 - 2¹⁹ = 22143368969 is a prime.

It is not a weakly prime, because it can be changed into another prime (22143893251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11071946628 + 11071946629.

It is an arithmetic number, because the mean of its divisors is an integer number (11071946629).

Almost surely, 2^22143893257 is an apocalyptic number.

It is an amenable number.

22143893257 is a deficient number, since it is larger than the sum of its proper divisors (1).

22143893257 is an equidigital number, since it uses as much as digits as its factorization.

22143893257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 46.

The spelling of 22143893257 in words is "twenty-two billion, one hundred forty-three million, eight hundred ninety-three thousand, two hundred fifty-seven".